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Mississippi Green Watersnake vs. Diamondback Watersnake

Two big, heavy watersnakes of the southern tip that bask over the same sloughs. The Diamondback carries a dark chain-like net around pale diamonds down its back at every age; the Mississippi Green is plain dark olive-green to brown with only faint marks. The Diamondback's belly is yellow with dark half-moons, the Mississippi Green's dark with pale half-moons, and the Mississippi Green has a row of small scales between the eye and the upper lip.

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Mississippi Green Watersnake

Nerodia cyclopion

Diamondback Watersnake

Nerodia rhombifer
Mississippi Green Watersnake vs. Diamondback Watersnake: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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